Income Taxes - Net deferred tax assets and liabilities (Details) - USD ($) $ in Millions	Dec. 31, 2016	Jan. 02, 2016
Deferred tax assets
Obligation for pension and postretirement benefits	$ 529	$ 436
Accrued expenses	282	288
Deferred compensation	175	184
Loss carryforwards	158	142
Inventory	49	71
Allowance for credit losses	23	29
Deferred income	11	9
Other, net	56	97
Total deferred tax assets	1,283	1,256
Valuation allowance for deferred tax assets	(116)	(115)
Deferred tax assets	1,167	1,141
Deferred tax liabilities
Property, plant and equipment, principally depreciation	(168)	(171)
Amortization of goodwill and other intangibles	(164)	(156)
Leasing transactions	(147)	(146)
Prepaid pension and postretirement benefits	(19)	(21)
Total deferred tax liabilities	(498)	(494)
Net deferred tax assets	$ 669	$ 647